Fifty-litre carboy would be the most economical size. Carboys may be retained without charge for two months.
50升的瓶子应是最经济的尺码,这些瓶子可免费保存两个月。
When my old friend Brian urged me to accept a cigarette, it was more than I could bear.
当我的老朋友布赖恩极力劝我接受一枝香烟时,我再也忍不住了。